Hi , the answer is 1/4 , because we have to find the common denominator which is 4 .Then we have to change the fractions , 1/2 is now 2/4 and 1/4 stays the same , then we just subtract.
1/2
2 times 2 equals 4
1 times 2 equals 2
2/4
1 times 1 equals 1
4times 1 equals 4
1/4
